Raon SpeechLM measured on 2 of 3 Text to speech benchmarks2
BenchmarkByScoreRank
No benchmark matches
API price not publicprice
1,005arena Elo
Apr 2026released
en, koLanguages
YesVoice cloning
Ranking?
Full ranking →···
79Lightning v3.11,02280Raon SpeechLM1,00581Zonos v0.11,000Strong at
Alternatives?
ModelScoreCostPriceWhat changes
KBetterKokoro 82M v1.0Openwins 59%—$0.99Languages: loses ko+1
OpenFish Audio Drama 3 Previewwins 80%—$15SBetterSimba 3.2wins 80%—$6.60Languages: loses koSBetterSimba 3.0wins 66%—$6.60Languages: not verified+1
BetterGemini 2.5 Flash Lite TTSwins 61%—$9.20Languages: not verified+1ModelScoreCostPriceWhat changes
Nothing here yet.
ModelScoreCostPriceWhat changes
KKokoro 82M v1.0Openwins 59%—$0.99Languages: loses ko+1SSimba 3.2wins 80%—$6.60Languages: loses koSSimba 3.0wins 66%—$6.60Languages: not verified+1Gemini 2.5 Flash Lite TTSwins 61%—$9.20Languages: not verified+1Gemini 2.5 Flash TTS (Dec 2025)wins 58%—$9.20Languages: not verified+1
Run it yourself
Fits onhardware needs not verified yet
LicenceCC BY-NC 4.0no commercial use
FAQ
How much does Raon SpeechLM cost?›
There is no per-unit API price: API price not public.
Is Raon SpeechLM free to use?›
There is no free API. The weights are open, so you can run it yourself.
How good is Raon SpeechLM, and what is it best at?›
#79 of 96 in Text to speech.
Is Raon SpeechLM better than Lightning v3.1?›
On AA TTS provider voice, Raon SpeechLM scores 1,005 vs 1,022 — lower.
When was Raon SpeechLM released? Is there a newer version?›
Released 2026-04-08. It is the current version in its line.
Is Raon SpeechLM open source?›
Yes, the weights are open (cc-by-nc-4.0 licence).
Can I run Raon SpeechLM locally?›
The weights are open and can be self-hosted; hardware needs are not confirmed yet.
What is Raon SpeechLM?›
Raon SpeechLM is an open-weights speech & voice model from Krafton, released Apr 2026.
What are the best alternatives to Raon SpeechLM?›
Kokoro 82M v1.0 (better), Fish Audio Drama 3 Preview (open weights).